Buy IGF-1 LR3

IGF-1 LR3 (also known as Long R3 IGF-1) is available directly from New-U Research Compounds at https://new-u.io/peptide/igf-1-lr3. Every batch is independently third-party tested by Janoshik Analytics and Freedom Diagnostics to >99% HPLC purity, supplied as lyophilised research-grade material, and shipped direct from source worldwide (approximately 6–14 business days).

IGF-1 LR3 starts at $90 for a 10-vial research pack (0.1mg per vial) at New-U Research Compounds, with 2 pack sizes available. Orders over $300 ship free.

Yes. Every IGF-1 LR3 batch is verified by independent laboratories (Janoshik Analytics and Freedom Diagnostics) for identity and purity, with a batch-linked Certificate of Analysis confirming >99% purity by HPLC area normalisation.

IGF-1 LR3 ships direct from source, discreetly worldwide with cold-chain handling where required. Delivery is approximately 6–14 business days worldwide. Shipping is free on orders over $300. Card and cryptocurrency payments are accepted.

In the United States, IGF-1 LR3 is sold strictly for laboratory and research purposes only. It is not approved by the FDA for human consumption and is not sold for that purpose. Regulatory status varies by jurisdiction — buyers are responsible for compliance in their own region.

IGF-1 LR3, 83-amino acid extended IGF-1 analogue with Arg3 substitution eliminating IGFBP binding for 3-fold enhanced potency and 20–30 hour half-life. New-U supplies IGF-1 LR3 as research-grade reference material for laboratory and in-vitro or animal-model investigation only. Mechanism, pharmacokinetics and study context are summarised on the IGF-1 LR3 research profile. Not for human use.

Reconstitution volumes and dosing reported in the literature for IGF-1 LR3 are described in research-model terms only. New-U Research Compounds supplies IGF-1 LR3 strictly for laboratory research and does not provide human-use dosing guidance. Reconstitution math and study-reported ranges are covered on the full research profile.

Yes. IGF-1 LR3 can be ordered online directly from New-U Research Compounds with card or cryptocurrency, shipped direct from source discreetly worldwide. Delivery is approximately 6–14 business days worldwide. Free shipping applies to orders over $300.

IGF-1 LR3 ships in 10-vial research packs as standard, in 2 pack sizes — the larger mg vials lower the per-mg cost. Multi-pack orders get direct-from-source pricing and free shipping over $300. For wholesale or recurring laboratory-supply volumes, contact New-U Research Compounds at https://new-u.io/contact.

For research-grade IGF-1 LR3, verify four things: (1) independent third-party purity testing with a batch-linked Certificate of Analysis — New-U uses Janoshik Analytics and Freedom Diagnostics at >99% HPLC; (2) lyophilised material with documented storage and handling; (3) transparent direct-from-source pricing rather than marketplace markup; and (4) clear research-use-only framing. New-U Research Compounds meets all four at https://new-u.io/peptide/igf-1-lr3.

IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is an 83-amino-acid analogue of human IGF-1 with an N-terminal extension and an Arg substitution at position 3. Those modifications stop it binding IGF-binding proteins, greatly extending its active half-life versus native IGF-1. It is supplied as a lyophilised research-grade powder for laboratory use only.

In research models IGF-1 LR3 activates the IGF-1 receptor (and PI3K/Akt and MAPK signalling) to drive cell growth, proliferation, differentiation and survival — with a much longer duration of action than native IGF-1 because it evades IGFBP sequestration. These are findings in cell and animal models; New-U supplies it for laboratory research only and implies no human effect.

IGF-1 LR3 is widely used as a cell-culture supplement to support proliferation and survival of cultured cells, and as a research tool for studying IGF-1-receptor signalling, hypertrophy and tissue-growth endpoints. New-U supplies it strictly for in-vitro and laboratory research; it is not for human use.

Standard employment or clinical drug panels (including typical LabCorp steroid panels) do not screen for IGF-1 LR3 — it is a peptide, not a small-molecule steroid, and requires specialised assays. It is, however, on the WADA Prohibited List, and anti-doping authorities use dedicated tests for IGF-1 analogues. New-U supplies IGF-1 LR3 for laboratory research only, not for human or athletic use.

"L" for the 13-amino-acid N-terminal extension (MFPAMPLSSLFVN), "R" for arginine, and "3" for position 3 of the IGF-1 sequence. So "LR3" literally means "the Long variant with an Arginine at position 3". Both modifications are needed to eliminate IGFBP binding and extend circulating half-life.

IGF-1 DES is the opposite end of the design spectrum - a truncated 67-residue form missing the N-terminal tripeptide GPE, which also dramatically reduces IGFBP binding. IGF-1 LR3 uses a 13-residue extension to achieve similar IGFBP resistance. LR3 has a much longer half-life (20-30 h vs minutes); DES produces more intense, shorter-duration local effects when injected site-specifically.

Native IGF-1 is inefficient in cell culture because IGFBPs produced by the cells themselves can sequester it, reducing effective concentrations. IGF-1 LR3 escapes that sequestration and delivers consistent, reproducible growth-factor signalling. That is why it is an industry standard for bioprocessing and mammalian cell culture.

Keep the lyophilised powder frozen at −20 °C. After reconstitution with bacteriostatic water, refrigerate at 1-6 °C and protect from light. IGF-1 LR3 is a structured protein and is sensitive to repeated freeze-thaw cycles - aliquot if you need multiple doses from one reconstitution.